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+ Product Details Size - 22"w X 36"h is the size for the duct opening measurement only
Refrigerant - 1/2" White Insulation - 50' Long
Measure the size of the air duct/drywall opening
+ Product Details Size – 25"w X 20"h is the size for the duct opening measurement only
And Meets/Beats ASTM B280 Standard
20" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 38 5/8"] Insulated Line + Product Details Size -+ Product Details Size 20"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 38 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and
US$ 112.91
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US$ 120.00